It's time to put away shovels, and clean up! We're making space in the warehouse, so we're moving out these big boxes of 3D printers! While supplies last, in-store only, final sale! Small, tidy, and lots of really good features - the Sermoon v1 Pro - 32% off! Super high detail printing with a Creality […]
Circuit: Lightstorm
Dave Hrynkiw
July 12, 2007
(PDF Version) GIF Link
Some of you may have found the LightStorm Pummers that Mark Tilden has made using some neat looking plastics. We've built our own variation of the circuit, which is a dark-activated, quad-bicore pseudo-random chaos generated, dual pummer circuit.
Parts required are:
Dark Turn on Circuit
- Solarcell (SB Part SC2433)
- 1F 2.5V (SB Part CP1.0F) capacitor
- 1 Germanium Diode (SB Part D2)
- 100k Trimpot (SB Part RT100k)
- 2n3904 transistor (SB Part TR3904)
- 2n3906 transistor (SB Part TR3906)
Pummer Circuit
- 74HCT240 (SB Part 74HCT240)
- 2 x 1000uF Capacitor (SB Part CP1000)
- 2 x UltraBright LEDs (SB Part UBLED-R)
- 2 x 100k Resistors (SB Part 100k)
- 2 x 22uF Capacitors (SB Part CP22)
- 4 x 0.22uF Capacitors (SB Part CP0.22uF)
- 2 x 2 MegaOhm Resistors (SB Part R2.0M)
Pummer Circuit
- 74HCT240 (SB Part 74HCT240)
- 8 x 2n3904 Transistors (SB Part TR3904)
- 8 x CP0.22µF Capacitors (SB Part CP0.22uF)
- 8 x 1k Resistors (SB Part R1k)
- 2.2 MegaOhm Resistor (SB Part R2.2M)
- 3 MegaOhm Resistor (SB Part R3M)
- 3.3 MegaOhm Resistor (SB Part R3.3M)
- 4.3 MegaOhm Resistor (SB Part R4.3M)
MORE POSTS
Happy Yew Nears!
This is just a subtle reminder that Solarbotics & HVW Technologies will both be closed January 1st and 2nd (Thursday and Friday), while we're out fighting raging hangovers being productive members of society. We hope 2008 treated all of you well and that 2009 will be even better. And if it isn't, well... Once we […]
Robothon Success!
Congrats out to Grant, for bringing his "Ender's Wraith" to first place in the advanced mini-sumo category at last weekend's Seattle Robothon. We also picked up an award for "Most Unusual Robot" with our Turbot prototypes! Additional to that, a Solarbotics Sumovore ("Oops" by Kristina Miles) won the amateur mini-sumo category!
Sandwich PCB Parts Bundle!
We are finally stocking the complete parts bundle (with PCB) to compliment David Cook's Robot Building for Beginners book. Check out our kits section, and take a look at the Sandwich parts bundle which contains everything, including a nice set of documentation, to build your very own Sandwich bot.
Solarbotics has been operating for more than 25 years, bringing electronics know-how and supplies to both the electronics professional and hobbyist. We'll be happy to help you too!
Solarbotics, Ltd. is not responsible for misprints or errors on product prices or information. For more information, please see our Terms and Conditions.
Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.